Grey and gloomy, the Towers, a vast Victorian mansion, was a most appropriate home for the eccentric Bonner family - and the perfect setting for murder. The mystery actually began when the beautiful and much-married Rose Bonner became suspicious that one of her late husbands was not as dead as she thought. But was it this ghost of a marriage past that gave old Aunt Agatha such a terrible shock on the eve of her seventy-fifth birthday - and then murdered her in her bed? The Bonner family felt that only Inspector Finch could catch the flesh-and-blood killer, and he quite agreed, for he had already dug up the crucial clue: a buried pair of size ten men's shoes.